If you have an SPF record set up, then whatever fraction of them pay attention to SPF would have not been annoyed, and the number of unhappy responses that you got would have been similarly reduced. Given that some big players (eg AOL) have gotten on the SPF bandwagon, the improvement could have been better than you'd think.

Do the math. If you own your own domain, then for less than an hour's effort on your part, thousands of people would have not received spam with your name on it. (Thousands more still would have, but every little bit is an improvement.) And that could be a lot less than an hour. Visit this wizard and 5 minutes later you will have a suggested DNS TXT record implementing SPF. Make that your DNS record and you're done - nobody will be able to forge email in your name to domains that use SPF.

If you think that spammers will continue using your name for spamming, setting up an SPF record strikes me as good neighbourly behaviour.

In reply to Re^4: Just Another Discussion of Spam by tilly
in thread Just Another Discussion of Spam by CloneArmyCommander

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